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Urinal FAQ

What causes black stains around the urinal?

When urinating, urine may splash out depending on where the urine makes 
contact inside the urinal. Particularly on wooden flooring, if the urine is left on 
the floor, the ammonium in urine may cause black stains.

Can splashing out of urine be avoided when using the urinal?

Whether urine splashes out when using the urinal depends on where the 
urine makes contact. Most people tend to aim for the drain trap at the 
bottom, but it is better to make contact with the urinal wall directly in front. 
The urine then flows down the urinal wall.

What causes black and pink dirt inside the urinal?

Areas such as the urinal bowl and around the discharge hole may discolor and turn black, or pink dirt may adhere. 
This is due to mold spores or bacteria floating in the air breeding by using the dirt adhered to the urinal as a nutrient 
source. When dirty, scrub using a toilet brush, etc. with a neutral toilet detergent.

Water flushes on its own

This product has the following automatic flushing functions.

<Interval discharge pipe flush>
In addition to flushing after every use, discharge pipe flushing is performed every 2 hours. Discharge pipe flushing is 
performed efficiently using 2 flushes, reducing urine accumulation and urolith adhesion inside the discharge pipe.

<"e-water+" cleaning> * e-water+ type only
Time periods when the urinal is not used for a long time, such as at night, are judged automatically and the trap is 
filled periodically with "e-water+". Because the occurrence of dirt inside the trap is reduced, the flush volume after 
use can be reduced.

* "e-water+" is water created by electrolyzing chloride ions contained in tap water, and includes sanitizing 

components (hypochlorous acid).

CAUTION

The above effects cannot be obtained while the power supply is off.

* If the frequency of the water flushing on its own does not match the cases described above, contact your 

installer or seller.

Wooden flooring

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Summary of Contents for USWN925 Series

Page 1: ...safe place for future reference Instruction Manual Table of Contents Safety Precautions 2 Part Names 5 Operation System 6 Pre flush Setting 7 Routine Maintenance 8 Periodic Inspection 11 Replacing the...

Page 2: ...oller during thunderstorms Doing so may cause electrical shock Wet hands prohibited Do not plug or unplug the connector with wet hands Doing so may cause electrical shock WARNING Do not disassemble Do...

Page 3: ...the floor with a well wrung mop or cloth Leaving such substances on the floor may cause staining or corrosion Wipe off any condensation from the surface of the urinal or other parts with a dry cloth F...

Page 4: ...Pre flush No Yes 0 3 L flush 2 Interval discharge pipe flush Yes No 24 L day When interval discharge pipe flush is set to off switch No 2 set to ON the effect of reducing urolith adhesion is no longe...

Page 5: ...ts may cover the porcelain surface and reduce the effect of the built in stain prevention technology Place a towel etc over the photoelectric sensor Photoelectric sensor stops detecting Remove the tow...

Page 6: ...or with a well wrung mop or cloth Wipe any urine that splashes out from the urinal or condensation that drops from the apparatus onto the floor with a well wrung mop or cloth Wipe any detergent or wat...

Page 7: ...ry replacement method continued Remove the battery box then remove the waterproof cover Place the battery box inside the controller Remove the spent alkaline battery replace the battery then attach th...

Page 8: ...attery type Replace the battery P 12 Flushed water does not stop Close the shutoff valve and contact your installer or seller P 16 Flushed water volume is low Dirt is clogging the water filter Clean t...

Page 9: ...shing performance may drop and impair hygiene Detection LED lights up or flashes In the AC type alkaline battery type and e water types the sensor detection LED may light up or flash When the LED ligh...

Page 10: ...rce When dirty scrub using a toilet brush etc with a neutral toilet detergent Water flushes on its own This product has the following automatic flushing functions Interval discharge pipe flush In addi...

Page 11: ...s within 650 mm of the sensor Required detection time About 5 seconds or longer not detected when less than 5 seconds Water supply pressure Minimum required water pressure dynamic 0 07 MPa Maximum wat...

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